Transferring or embossing paper



UNITED STATES ALBERT I. GLAPP, OF MABBLEHEAD, MASSACHUSETTS.

TRANSFERRING OR EMBOSSING PAPER.

No Drawing.

To all wlwm it may concern:

Be it known that I, ALBERT L. C'LAPP, citizen of the United States, residing at Marblehead, in the county of Essex and State of Massachusetts, have invented new and useful Improvements in Transferring or EmbossingPaper, of which the following is a specification. i

This invention has for its object to produce a transfer or embossing paper-so called, which may be employed as a base or carrier for the layer or coating of transfer material" such as-ink, which 1s to be transferred by heat and pressure to the object,

is subjected to the pressure of aheated die or stamp. Such inksor transfer materials may be prepared from ums dissolved in alcohol, in combination with dyes, pigments or metallic powders; from rubber, gutta percha, pontiniac, etc, from gums which are soluble in solvents of the benzene group; or from many other materials.

I have heretofore found it necessary to employ a relatively high grade parchment paper, as the carrier for the transfer material, but I have discovered that by treating various relatively low grade paper with glycerin or some, equivalent hygroscopic material, a carrier for the transfer material is produced, which gives up the said material .readily under heat and pressure.

Inaccordance with my process, I may employany suitable paper having the requisite strength, such as that made-from sulfite, rag or sulfate stock. This paper is first impregnated with glycerin or equivalent solution of. hygroscopic or delique'scent salt. If desired, the gIlycerin may be diluted with water, but prefer to employ it in undiluted condition. For example in impregnating a ream of Kraft paper (30 pounds by weight), (I iemploy about five pounds of glycerin. After impregnation, the sheets are ready for the reception of the ink.

In making an 1nk or transfer material Specification of Letters Patent.

e. g. rubber, leather, wood, cloth, paper,

Patented Nov. 29, 1921.

Application filed November 15, 1919. Serial No. 838,849.

suitable for printing on rubber, for example,

I may employ rosin, 10 parts; shellac, 2-

'parts; and 10 parts of aluminum bronze or gold bronze; which are thoroughly mixed in alcohol. By a suitable coating machine, the resulting mixture is applied to the paper.

I have found that by first treating the paper "with a hygroscoplc material, such as g%y eerin, it is possible to use a thinner layer 0 ink, and at the same time obtain a better impression than heretofore without smutting. A paper thus treted is smooth and repellant to the ink, under the influence of heat and pressure, and yet is capable of hold- 1n the ink when cold.

hile I have described an ink as containing an adhesive and as being a plied by a coating machine, it is immateria broadly stated, what transfer material is used or how it is applied. For example, I may use as transfer material the various chalk leaves or gold or silver leaf. In fact I have discovered that my paper as herein described, is particularly applicable for use in connection with such transfer material as gold or silver leaf, since it permits the transfer of the gold or silver with clear cut design on the material to be printed or embossed, and that the gold or silver leaves the paper readily under heat and pressure.

Having thus explained the nature of my said invention and described a way of making and using the same, but without attempting to set forth all of the forms inwhich it may be made or all of the modes of its use, what I claim is:

1. A transfer paper consisting of a paper base impregnated with a hygroscopic material and having an exterior layer or surface ,coating of a transfer material which may be transferred by heat and pressure to ALBERT L. CLAPP. 

